Systems Administrator (JHB)

DataFin; Cape Town, Johannesburg; On-site; ZAR 200,000 - 300,000; Full time

Job summary

A dynamic provider of tailored financial solutions is looking for a Systems Administrator in Cape Town. This role requires at least 3 years of experience in infrastructure maintenance, strong knowledge of network administration, and relevant certifications. Responsibilities include managing network infrastructure, monitoring systems for performance, and ensuring system security. The ideal candidate will have expertise in Azure and server technologies, along with problem-solving and communication skills.

Qualifications

• Minimum of 3 years’ experience with infrastructure maintenance.
• Certifications such as CompTIA Network+, CompTIA Security+, Microsoft Certified: Azure Administrator, Cisco CCNA, or similar.
• Proven expertise in network administration.

Responsibilities

• Administer and maintain all company network infrastructure.
• Install, configure, and maintain servers for optimal performance.
• Monitor systems for performance and security, responding to alerts.
• Troubleshoot network-related performance issues.

Skills

Infrastructure maintenance

Network administration

Problem-solving skills

Analytical skills

Communication skills

Education

BSc in Computer Science or related field

Tools

Azure

TCP/IP

DNS

DHCP

Windows Server

Linux/Unix

Nagios

SolarWinds

Zabbix

PowerShell

Bash

Python

Job description

ENVIRONMENT

A dynamic provider of tailored financial solutions seeks a Systems Administrator with a strong technical background, hands-on experience, and a proactive approach to problem-solving in a dynamic business environment. You will be responsible for installing, updating, and configuring systems; taking steps to monitor and identify any potential issues, and implementing preventative measures. You will also ensure system back-ups are taking place as required and handle any down time effectively. Applicants will require Certifications such as CompTIA Network+, CompTIA Security+, Microsoft Certified: Azure Administrator, Cisco CCNA, or similar. You will need 3 years’ experience with infrastructure maintenance, understand SQL backups & have proficiency with tools including Azure, TCP/IP, DNS, DHCP, VLANs, Windows Server, Linux/Unix, Active Directory, Nagios, SolarWinds, Zabbix, PowerShell, Bash and Python.

DUTIES

• Administer, monitor, and maintain all company network infrastructure (LAN, WAN, VPN, wireless, and firewalls).
• Install, configure, and maintain physical and virtual servers (Windows, Linux, etc.), ensuring optimal performance and availability.
• Manage and maintain telephony infrastructure and the optimization of thereof.
• Monitor systems for performance, reliability, and security, responding to alerts and resolving issues proactively.
• Manage and report on root cause analysis for faults with remedial action.
• Troubleshooting and monitoring network related performance focusing on the remote and on-site deployment.
• Set up monitoring software for performance on servers to do preventative maintenance.
• Assist Support team on complex technical issues.
• Work together with the Department Manager to define policies and procedures relating to network performance and security.
• Secure server environments by creating documented policies with procedures, implementation, and monitoring thereof.
• Ensure network protocols are documented refining security between network devices.
• Oversee Patch Management policy.
• Budget control and administration of software licensing.
• Maintain vendor and supplier relations.
• Stay abreast of emerging technologies and best practices to recommend improvements and ensure compliance with industry standards.

REQUIREMENTS

Qualifications –

• Certifications such as CompTIA Network+, CompTIA Security+, Microsoft Certified: Azure Administrator, Cisco CCNA, or similar.

Experience/Skills –

• Minimum of 3 years’ experience with infrastructure maintenance.
• Understanding of SQL backups.
• Microsoft Azure experience.
• Proven expertise in network administration (TCP/IP, DNS, DHCP, VLANs, firewalls, wireless).
• Strong knowledge of server technologies (Windows Server, Linux/Unix, Active Directory, virtualisation platforms such as VMware or Hyper-V).
• Familiarity with monitoring and management tools (e.g., Nagios, SolarWinds, Zabbix).
• Experience in cloud infrastructure (AWS, Azure, Google Cloud).
• Knowledge of scripting languages (PowerShell, Bash, Python) for automation.

Advantageous:

• BSc in Computer Science or a related field.
• Microsoft Certifications.
• Security Certifications.
• Expertise or experience with ManageEngine range of products.

ATTRIBUTES

• Strong skills for daily operational challenges.
• Excellent problem-solving, analytical, and communication skills.
• Ability to work independently and as part of a team, including participation in an on-call rotation if required.